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C1.2 HL The Biochemistry of Aerobic Respiration

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Total cards: 7•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

What does NAD⁺ do in respiration?

Back (Answer)

Acts as a hydrogen/electron carrier, forming NADH + H⁺. Keywords: redox, coenzyme.

#2
Front (Question)

What are the products of glycolysis?

Back (Answer)

2 pyruvate, 2 ATP (net), 2 NADH. Keywords: cytoplasm, anaerobic.

#3
Front (Question)

What is dehydrogenation?

Back (Answer)

Removal of hydrogen atoms to reduce NAD⁺/FAD. Keywords: oxidation.

#4
Front (Question)

Summarize the link reaction.

Back (Answer)

Pyruvate → decarboxylation → oxidation → acetyl-CoA. Keywords: CoA, NADH, CO₂.

#5
Front (Question)

What enters the Krebs cycle?

Back (Answer)

Acetyl-CoA. Keywords: 2-carbon acetyl group.

#6
Front (Question)

What are the products of one turn of the Krebs cycle?

Back (Answer)

3 NADH, 1 FADH₂, 1 ATP, 2 CO₂. Keywords: oxidation, matrix.

#7
Front (Question)

Why do lipids yield more ATP than carbohydrates?

Back (Answer)

Fatty acids produce more acetyl-CoA per molecule; more hydrogen for oxidation. Keywords: respiratory substrates, energy-dense.